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Import Google Vault to Thunderbird – Full Tutorial

  author
Published By Mohit Jha
Nimisha Ramesh
Approved By Nimisha Ramesh
Published On May 19th, 2026
Reading Time 4 Minutes Reading

Overview: This informative post will provide you simple methods to import Google Vault to Thunderbird. It will include both manual and professional solutions. Next, comes your limitations part of following the manual steps. And at last, a professional solution that will help to counter and simplify the process in a much smarter way.

If you are working with archived emails using the Google Vault. Then, it can be challenging when users need an offline option to manage your emails and migrate to another email client. It is very difficult for non-tech users to import those files to Mozilla Thunderbird.

About Google Vault

Google Vault is a type of Google workspace tool that is made for companies to keep their search, export, emails, chats, and other options for business needs. Whenever, users try to export their Google Vault data, by default it is saved in MBOX, & PST format.

Talking about MBOX files, it is widely supported by Mozilla Thunderbird. That is why most of the users prefer Thunderbird to manage their offline emails in an easy way

Also Read: Transfer POP3 Email to New Computer

Table of ContentsHide

Reasons to Export Google Vault Data into Thunderbird

This section covers why users need to import Google Vault to Thunderbird. Go through the below points:

  • Thunderbird allows you to open and read emails in offline mode
  • You can organize your archived emails into folders, labels and categories
  • Local email access is used for maintaining record and maintaining legal standards
  • There are smart search filters in Thunderbird to help you find emails instantly
  • Eventually, you get a local backup of your exported data
  • Users can migrate their archived Google Workspace emails to desktop-based Thunderbird application

Challenges Users Face During Importing Google Vault Data

Before following the steps, see some of the common problems

  • Export only large mailboxes data
  • You cannot import directly into Thunderbird
  • Manual method fails if you have large files
  • There is no folder structure
  • Attachments may not load properly
  • After import, you may find duplicate emails
  • Not ideal for technical steps

Manual Method to Import Google Vault to Thunderbird

In Thunderbird, you can use ImportExportTools NG extension to import your MBOX files

Step 1. Exporting Emails from Google Vault

  • Log in to your Google Vault account
  • Next, search your query
  • Then, select Gmail data
  • Export the mailbox
  • Download the exported ZIP file
  • Now, unzip to extract MBOX file

Step 2. Install Thunderbird

  • Download and install Mozilla Thunderbird
  • Set up any email account or just use Local Folders

Step 3. Install ImportExportTools NG Extension

  • Open Mozilla Thunderbird first
  • Navigate to Tools > Add-ons and Themes
  • Search for ImportExportTools NG in the search box
  • Now, click on Install
  • Now, restart your Thunderbird

Step 4. Import Google Vault MBOX Data

  • Start by right-clicking on Local Folders
  • Go to >>> ImportExportTools NG > MBOX file > Import <<<
  • There you will get option to import one or multiple MBOX files
  • After that, choose Google Vault MBOX File and load it
  • Just click Open to begin the import process

Thunderbird will import your mailbox data now.

Limitations of Using Manual Ones

You will face problems rather than output. So, manual methods has drawbacks in terms of large data.

  • Time taking task
  • Chances of data corruption
  • Needs Technical guidance
  • Get duplicate emails
  • Unorganized folder structure
  • Slow performance

To avoid all of these, you need to opt our professional solution for a smooth import process.

Directly Import Google Vault to Thunderbird – Smart Way

Users usually find problems in importing Google vault data. There are manual methods which users go with, but are stuck with multiple errors such as its structure, large MBOX files, or duplicate emails. As, it takes much time of yours when you need to repeat the same steps for every MBOX.

To make the process simple, users prefer FreeViewer Thunderbird Import Wizard to directly import Google Vault mailbox data into Thunderbird along with emails, attachments. It also retains the same folder structure and takes care of important aspects related to your emails.

Conclusion

Users import Google Vault to Thunderbird to access their data offline, manage mailbox, and to store your email long term. Generally, you can go with manual methods which is through installing ImportExportTools add-on extension. But, it’s quite a tricky task and not all kinds of users are capable of doing this. For that, just opt our automated solution to import MBOX data quickly to Thunderbird.

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